• Name: Niobium

  • Symbol: Nb

  • Number of Energy Levels: 5

  • Electrons on the outer energy level: 1

  • Atomic Number: 41

  • Atomic Mass: 92.96638 Amu

  • Protons / Electrons: 41

  • Neutrons: 52

  • Density: 8.57 g/cm3

  • Classification: Transition Metal

Top 17 interesting facts about Niobium

  • Niobium was discovered in 1801 by Charles Hatchet. Niobium was named after the name of the daughter of the mythical king Tantalus, whose name was Niobe.
  • Niobium's melting point is at 2468.0 C (2741.15 K, 4474.4 F) and its boiling point is at 4927.0 C (5200.15 K, 8900.6 F).
  • Niobium was formerly called columbium and had the symbol Cb.
  • Niobium is soft and has a gray color.
  • Niobium is often found in pyrochlore and columbite minerals.
  • Niobium is the 33rd most common element in Earth's crust.
  • Free element niobium does not occur in nature.
  • Niobium is mostly used in alloys, increasing the strength (steel used in gas pipelines and structural steel).
  • Other uses of niobium include: jet and rocket engines, superconducting materials and magnets, MRI scanners, welding, nuclear industry, electronics, optics, and few others.
  • At cryogenic temperature, niobium becomes superconductor.
  • Niobium has the largest magnetic penetration depth among all elements.
  • Niobium is corrosive resistant.
  • Niobium has a lower production price and is availability is greater than that of other similar elements.
  • More than 32 isotopes of niobium are known but only 93-Nb is stable.
  • Brazil and Canada are the largest producers of niobium due to the large deposits of pyrochlore mineral found in these two countries.
  • More than 60,000 tones of niobium is produced annually (85% of it is produced in Brazil).
  • Niobium has no biological role and it is considered harmless.